Thank you so much! Frustrating yet so simple.
Thank you so much for your answer! This did the trick.
OMG thank you! I would have gotten in a lot of trouble.
Same exact problem. I did this and it worked! Thank you!
Thank you very much, my friend. You saved me!
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"The battery with too much current while charging..."

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All of these people are idiots, it is a temperature warning! This is caused by overcharging the battery so much at once or the charger not working correctly and overloading the battery with too much current while charging. Take out the battery and let cool. Put back in after and turn on. Connect to charger if needed, but leave off a couple of minutes before attempting to reset.

Now it is time to test... was it the temperature or the charger? When your phone is on and you get an error saying "charging paused - voltage too high" then it is the charger and not the battery. The charger is overloading your battery with energy to fast, essentially cooking your battery and possibly damaging it. If that is case, buy a new charger.

Someone said: There are other reasons for this kind of warning. If the charging port is worn, dirty or broken (you wouldn`t necessarily see it as it will be in the case) it may be hard to isolate. These situations can create open circuits or shorts between them, some of which may be `down the line` inside the phone. It can cause the phone to `misread` battery voltage and prevent startup or abort startup.

"If the triangle is blinking usually with a temperature sign..."

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If the triangle is not blinking, it means the battery is too low to turn on the phone. This usually results from trying to turn a phone with very low battery back on. You can resolve this issue by keeping the phone off for a few minutes connected to the charger prior to turning it back on. On the other hand, if the triangle is blinking usually with a temperature sign, it means something is wrong with your charging circuit. This can range from having a faulty port, which may mean sending it back for repair, to having a faulty charger. This could also be due to an overheated battery. An easy way to diagnose the problem is connecting it to a USB charger. If that works, replace your charger. Otherwise, send it in for repair. Hope this helps!

"Turn off your device and remove the battery..."

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Welcome to “askmefas t.com” Sir/Mam and thank you for visiting us here!
My name is BEN and I’m here to help you solve your problem, so let’s begin.. First, turn off your device and remove the battery. Now, press and hold the reset button for at least ten seconds then release and put back the battery then try to turn it on again. If that doesn’t work then use the power button instead. Press and hold the power button for about 20 to 30 seconds, release it then put the battery back and turn it on again.

I hope my answer helps you solve your problem and thank you once again for visiting us.

lj_luche said: Hi! I got the same thing thst showed up in my phone after hours i plunged my wet phone in a bag of rice. I tried turning it on while charging but what appears is te blinking alternately the battery percentage and tge triangle warning sign with tempersture gauge. Pks. Help on what to do. Thanks

okpodi1 said: i have this same challenge with my samsung tab 2 10.1, it shows a yellow triangle and temperature gauge .... i av taken it to different repairer same thing..................... mr lj_luche how did u solve urs............................plz . thanks. Mr lj_luche how did u solve urs, i have the same exact problem with my samgung galaxy tab2 10.1, phone engineer could not fix it......show a triangle and tempreture gauge when charging .............if i put another battery it will come on but the charging is not working

"Battery is drained i`ve heard this..."

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I believe that is battery problem. battery is drained i`ve heard this kind of problem also, this is what they do >remove the battery and put it back again --->but still the problem occurs >change the charger that you are currently using (do not use fast charger, normal charger only)
>if nothing happens, it seems that the problem is battery not charging,
and needs replacement...thats the best option and final solution to avoid any unnecessary incidents might happen to you and to your device.

"Is indicator and tells you that your battery still needs to charge more and..."

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The yellow triangle is indicator and tells you that your battery still needs to charge more and cannot turn on the phone. And if you wanna remove that low battery indicator just go to your settings > tap the device selection in the upper screen> and you will see the "led indicator" then tap it, and you will see " charging > low battery > notifications > voice recording. tap the led indicator and unclick the "low battery" and save it.
If you want a video tutorial here it is:

"So 15 mins yellow triangle disappears so it cooling down..."

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I just got my galaxy 3s this month and i used alot then all sudden my phone is hot so it showed yellow traingle temp flashing so i did quick turn off the device to let it cool... and charging... red dot lighted it charging.. so 15 mins yellow triangle disappears so it cooling down... sound like the phone is be use way to much so decide to put in less usage.. and seem ok .... lesson learned... make sure it not over use..

"It seems to be when the battery has been allowed to totally go flat..."

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This has happenedhappened to me twice. It seems to be when the battery has been allowed to totally go flat. I found that if u can bear to leave your galaxy for 24 hours, the next time u plug in the charger it hopefully will work. Good luck.

This means that your phone is in recovery mode, hit the return button, a menu will come up and use the volume up and down button to scroll down to reboot, this should reboot the phone normally....let me know how it goes...

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Why does my galaxy s2 show a warning yellow triangle sign when charging?